can anyone tell me if the petcock vent hose on an 81gs1000gl has anything to do with fuel getting to the #2 carb. Sporadic firing on that cylinder and ignition and compression tests were okay. lots of vacuum on the hose at petcock end too.
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If the petcock fails it can dump fuel down the vacuum line and into #2 carb. There is TONS of info about this in the archives so do a search if you need more info.Ed
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Hi,
There's not really anything called a "petcock vent hose". There are two lines, a fuel line and a vacuum line. Have a look here...
Where Do These Hoses Go?
Thank you for your your indulgence,
BassCliffComment
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Rebuild Kit
I tried a K&L petcock rebuild kit and had only limited success. Something in the K&L kit is not quite right and the petcock didn't work. Soaked it in carb cleaner and gently cleaned the rubber goods (diaphragm), o-ring, etc. I did use a couple of rubber parts out of the K&L kit and got it working correctly.
Excessive fuel in number 2 can also be caused by the seat and needle in the carb or improper float height. Keep tinking!Comment
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